hi, i'm working on the easy childs sweater and this will be my first sweater. now i'm up the the part where it says:

Work 6 rows garter st. then 6 rows keeping Garter st at ends and yoke 32 (36, 38)sts , and center sts in st st. Continue in this manner working to correspond to other side, BINDING off 25 (29, 33) sts instead of casting on. 32 (36, 38 sts).

i have NO idea what that means. i'd appreciate any help.
Thanks
Cherine